- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 8/92 - Compositions for stimulating production by acting on the underground formation characterised by their form or by the form of their components, e.g. encapsulated material
Patent holdings for IPC class C09K 8/92
Total number of patents in this class: 585
10-year publication summary
|
54
|
57
|
75
|
43
|
38
|
31
|
19
|
16
|
16
|
9
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20769 |
58 |
| Saudi Arabian Oil Company | 12891 |
55 |
| Schlumberger Technology Corporation | 10641 |
53 |
| Schlumberger Canada Limited | 7244 |
44 |
| Schlumberger Technology B.v. | 5154 |
41 |
| Services Petroliers Schlumberger | 5763 |
41 |
| Schlumberger Holdings Limited | 2840 |
26 |
| Prad Research and Development Limited | 2693 |
23 |
| Aramco Services Company | 3921 |
19 |
| Baker Hughes Holdings LLC | 3006 |
18 |
| Flotek Chemistry, LLC | 116 |
11 |
| Innospec Limited | 336 |
7 |
| CARBO Ceramics Inc. | 237 |
6 |
| Research Triangle Institute | 408 |
6 |
| Johnson Matthey Public Limited Company | 1842 |
5 |
| RTI International | 20 |
5 |
| Baker Hughes, a GE Company, LLC | 2114 |
5 |
| Tracerco Limited | 90 |
5 |
| Baker Hughes Incorporated | 5281 |
4 |
| BASF SE | 20803 |
4 |
| Other owners | 149 |